Alright Ladies! I need some advice...

Monique
So, it's my junior year, and my mom really wants me to go to Prom. She made me get this dress just in case I decide to go, and I'm really not sure how I feel about it. Is it tacky? Old fashioned? I'm not sure, especially since it's really not like all the beautiful Prom 2017 dresses you see online.
Opinions are much appreciated!